Add unique rank route

src/server.ts

@@ -2,6 +2,7 @@ import {
     getMissedSearchRank,
     getPostViewRank,
     getPostViewsBulk,
+    getPostViewsUnique,
     getSearchRank,
     getViewCount,
     logMissedSearch,
@@ -77,6 +78,14 @@ app.get("/views/rank", async (request, reply) => {
     return reply.status(200).send({ data: await getPostViewRank(dates, limit), success: true });
 });
 
+app.get("/views/rank/unique", async (request, reply) => {
+    const qparams = request.query as Record<string, unknown>;
+
+    const limit = qparams.limit ? Number(qparams.limit) : 50;
+    const res = await getPostViewsUnique(limit);
+    return reply.status(200).send({ data: res, success: true });
+});
+
 app.get("/views/bulk", async (request, reply) => {
     const qparams = request.query as Record<string, unknown>;
     let posts: Array<number>;

src/track.ts

@@ -41,6 +41,16 @@ export async function getPostViewRank(dates: Array<string>, limit = 50): Promise
     return (await r.json<{ post_id: string; view_count: string; }>()).data.map(v => ({ post: Number(v.post_id), count: Number(v.view_count) }));
 }
 
+export async function getPostViewsUnique(limit = 50): Promise<Array<{ count: number; post: number; }>> {
+    const r = await client.query({
+        query:        "SELECT post_id, COUNT(DISTINCT ip_address) as view_count FROM post_views GROUP BY post_id ORDER BY view_count DESC LIMIT {limit:UInt64}",
+        query_params: { limit },
+        format:       "JSON"
+    });
+
+    return (await r.json<{ post_id: string; view_count: string; }>()).data.map(v => ({ post: Number(v.post_id), count: Number(v.view_count) }));
+}
+
 export async function getPostViewsBulk(posts: Array<number>, date?: string): Promise<Array<{ count: number; post: number; }>> {
     const r = await client.query({
         query:        `SELECT post_id, COUNT(*) as view_count FROM post_views WHERE post_id IN ({posts:Array(UInt64)})${date ? " AND date = {date:Date}" : ""} GROUP BY post_id LIMIT 100`,